<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>tabel的tr属性</title>
</head>
<body>
    <body>
        <table align="center" border="1" width="500px"  bgcolor="yellow">
            <tr height="100" bgcolor="orange" align="center">
                <td>1</td>
                <td>2</td>
                <td>3</td>
            </tr>
            <tr height="200" valign="top">
                <td>4</td>
                <td>5</td>
                <td>6</td>
            </tr>
        </table>
    </body>
</body>
</html>